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Contents
1 Overview.......................................................................................................................................9
Supported Operating Systems................................................................................................................................10
Getting Help............................................................................................................................................................ 10
Contacting Dell.................................................................................................................................................11
Related Documentation....................................................................................................................................11
Documentation Feedback................................................................................................................................ 11
2 Features...................................................................................................................................... 13
Physical Disk Power Management.........................................................................................................................13
Configured Spin Down Delay........................................................................................................................... 13
Types Of Virtual Disk Initialization.......................................................................................................................... 14
Background Initialization Of Virtual Disks........................................................................................................14
Full Initialization Of Virtual Disks......................................................................................................................14
Fast Initialization Of Virtual Disks.....................................................................................................................14
Consistency Checks................................................................................................................................................14
Disk Roaming.......................................................................................................................................................... 15
Using Disk Roaming..........................................................................................................................................15
FastPath.................................................................................................................................................................. 15
Configuring FastPath-Capable Virtual Disks.................................................................................................... 15
Virtual Disk Migration............................................................................................................................................. 16
Migrating Virtual Disks.....................................................................................................................................16
Virtual Disk Write Cache Policies...........................................................................................................................17
Write-Back And Write-Through.......................................................................................................................17
Conditions Under Which Write-Back Is Employed.......................................................................................... 17
Conditions Under Which Forced Write-Back With No Battery Is Employed................................................... 17
Virtual Disk Read Cache Policies............................................................................................................................18
Reconfiguration Of Virtual Disks.............................................................................................................................18
Fault Tolerance.......................................................................................................................................................20
The SMART Feature................................................................................................................................................20
Automatic Replace Member With Predicted Failure....................................................................................... 20
Patrol Read............................................................................................................................................................. 21
Redundant Path Support (For PERC H810 Only)......................................................................................................21
Physical Disk Failure Detection..............................................................................................................................22
Using Persistent Hot Spare Slots............................................................................................................................22
Physical Disk Hot Swapping...................................................................................................................................22
Using Replace Member And Revertible Hot Spares...............................................................................................22
Controller Cache Preservation............................................................................................................................... 23
Cache Preservation With Non-Volatile Cache (NVC)...................................................................................... 23